/// <summary>
/// Helper function that retrieves the specified glyph, creating it if necessary.
/// </summary>
public BMGlyph GetGlyph(int index, bool createIfMissing)
{
// Get the requested glyph
BMGlyph glyph = null;
if (mDict.Count == 0)
{
// Populate the dictionary for faster access
for (int i = 0, imax = mSaved.Count; i < imax; ++i)
{
BMGlyph bmg = mSaved[i];
mDict.Add(bmg.index, bmg);
}
}
// Saved check is here so that the function call is not needed if it's true
if (!mDict.TryGetValue(index, out glyph) && createIfMissing)
{
glyph = new BMGlyph();
glyph.index = index;
mSaved.Add(glyph);
mDict.Add(index, glyph);
}
return glyph;
}
/// <summary>
/// Trim the glyphs, ensuring that they will never go past the specified bounds.
/// </summary>
public void Trim(int xMin, int yMin, int xMax, int yMax)
{
if (isValid)
{
for (int i = 0, imax = mSaved.Count; i < imax; ++i)
{
BMGlyph glyph = mSaved[i];
if (glyph != null) glyph.Trim(xMin, yMin, xMax, yMax);
}
}
}
private static void CreateFont() {
if (Selection.objects == null) return;
if (Selection.objects.Length == 0) {
Debug.LogWarning("没有选中fnt文件，或者图片文件");
return;
} // end if
//至少需要保证选中文件的目录下面有fnt文件，否则不会生成字体
Font m_myFont = null;
TextAsset m_data = null;
string filePath = "";
Material mat = null;
Texture2D tex = null;
bool bln = false;
//不管选中fnt、png、mat、fontsettings其中的任何一个，都可以创建字体
foreach (Object o in Selection.objects) {
if (o.GetType() == typeof(TextAsset)) {
m_data = o as TextAsset;
bln = true;
} else if (o.GetType() == typeof(Material)) {
mat = o as Material;
bln = true;
} else if (o.GetType() == typeof(Texture2D)) {
tex = o as Texture2D;
bln = true;
} else if (o.GetType() == typeof(Font)) {
m_myFont = o as Font;
bln = true;
} // end if
if (bln) {
filePath = AssetDatabase.GetAssetPath(o);
filePath = filePath.Substring(0, filePath.LastIndexOf('.'));
} // end if
} // end foreach
//获取fnt文件，我们在这里加一次判断，为了可以直接选择图片也能导出字体
string dataPathName = filePath + ".fnt";
if (m_data == null) {
m_data = (TextAsset)AssetDatabase.LoadAssetAtPath(dataPathName, typeof(TextAsset));
} // end if
if (m_data != null) {
string matPathName = filePath + ".mat";
string fontPathName = filePath + ".fontsettings";
string texPathName = filePath + ".png";
//获取图片，如果没有图片，不影响，可以生成之后，再手动设置
if (tex == null) {
tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPathName, typeof(Texture2D));
} // en dif
if (tex == null) {
Debug.LogWarning("没找到图片，或者图片名称和fnt文件名称不匹配");
} // end if
//获取材质，如果没有则创建对应名字的材质
if (mat == null) {
mat = (Material)AssetDatabase.LoadAssetAtPath(matPathName, typeof(Material));
} // end if
if (mat == null) {
mat = new Material(Shader.Find("GUI/Text Shader"));
AssetDatabase.CreateAsset(mat, matPathName);
} else {
mat.shader = Shader.Find("GUI/Text Shader");
} // end if
mat.SetTexture("_MainTex", tex);
//获取font文件，如果没有则创建对应名字的font文件
if (m_myFont == null) {
m_myFont = (Font)AssetDatabase.LoadAssetAtPath(fontPathName, typeof(Font));
} // end if
if (m_myFont == null) {
m_myFont = new Font();
AssetDatabase.CreateAsset(m_myFont, fontPathName);
} // end if
m_myFont.material = mat;
BMFont mbFont = new BMFont();
//借助NGUI的类，读取字体fnt文件信息，可以不用自己去解析了
BMFontReader.Load(mbFont, m_data.name, m_data.bytes);
CharacterInfo[] characterInfo = new CharacterInfo[mbFont.glyphs.Count];
for (int i = 0; i < mbFont.glyphs.Count; i++) {
BMGlyph bmInfo = mbFont.glyphs[i];
CharacterInfo info = new CharacterInfo();
//设置ascii码
info.index = bmInfo.index;
//设置字符映射到材质上的坐标
info.uvBottomLeft = new Vector2((float)bmInfo.x / mbFont.texWidth, 1f - (float)(bmInfo.y + bmInfo.height) / mbFont.texHeight);
info.uvBottomRight = new Vector2((float)(bmInfo.x + bmInfo.width) / mbFont.texWidth, 1f - (float)(bmInfo.y + bmInfo.height) / mbFont.texHeight);
info.uvTopLeft = new Vector2((float)bmInfo.x / mbFont.texWidth, 1f - (float)(bmInfo.y) / mbFont.texHeight);
info.uvTopRight = new Vector2((float)(bmInfo.x + bmInfo.width) / mbFont.texWidth, 1f - (float)(bmInfo.y) / mbFont.texHeight);
//设置字符顶点的偏移位置和宽高
info.minX = bmInfo.offsetX;
info.minY = -bmInfo.offsetY - bmInfo.height;
info.maxX = bmInfo.offsetX + bmInfo.width;
info.maxY = -bmInfo.offsetY;
//设置字符的宽度
info.advance = bmInfo.advance;
characterInfo[i] = info;
} // end for
m_myFont.characterInfo = characterInfo;
EditorUtility.SetDirty(m_myFont);//设置变更过的资源
EditorUtility.SetDirty(mat);//设置变更过的资源
AssetDatabase.SaveAssets();//保存变更的资源
AssetDatabase.Refresh();//刷新资源，貌似在Mac上不起作用
//由于上面fresh之后在编辑器中依然没有刷新，所以暂时想到这个方法，
//先把生成的字体导出成一个包，然后再重新导入进来，这样就可以直接刷新了
//这是在Mac上遇到的，不知道Windows下面会不会出现，如果不出现可以把下面这一步注释掉
AssetDatabase.ExportPackage(fontPathName, "temp.unitypackage");
AssetDatabase.DeleteAsset(fontPathName);
AssetDatabase.ImportPackage("temp.unitypackage", true);
AssetDatabase.Refresh();
Debug.Log("创建字体成功");
} else {
Debug.LogWarning("没有找到fnt文件，或者文件名称和图片名称不匹配");
} // end if
} // end CreateFont
/// <summary>
/// Reload the font data.
/// </summary>
static public void Load(BMFont font, string name, byte[] bytes)
{
font.Clear();
if (bytes != null)
{
ByteReader reader = new ByteReader(bytes);
char[] separator = new char[] { ' ' };
while (reader.canRead)
{
string line = reader.ReadLine();
if (string.IsNullOrEmpty(line)) break;
string[] split = line.Split(separator, System.StringSplitOptions.RemoveEmptyEntries);
int len = split.Length;
if (split[0] == "char")
{
// Expected data style:
// char id=13 x=506 y=62 width=3 height=3 xoffset=-1 yoffset=50 xadvance=0 page=0 chnl=15
int channel = (len > 10) ? GetInt(split[10]) : 15;
if (len > 9 && GetInt(split[9]) > 0)
{
Debug.LogError("Your font was exported with more than one texture. Only one texture is supported by NGUI.\n" +
"You need to re-export your font, enlarging the texture's dimensions until everything fits into just one texture.");
break;
}
if (len > 8)
{
int id = GetInt(split[1]);
BMGlyph glyph = font.GetGlyph(id, true);
if (glyph != null)
{
glyph.x = GetInt(split[2]);
glyph.y = GetInt(split[3]);
glyph.width = GetInt(split[4]);
glyph.height = GetInt(split[5]);
glyph.offsetX = GetInt(split[6]);
glyph.offsetY = GetInt(split[7]);
glyph.advance = GetInt(split[8]);
glyph.channel = channel;
}
else Debug.Log("Char: " + split[1] + " (" + id + ") is NULL");
}
else
{
Debug.LogError("Unexpected number of entries for the 'char' field (" + name + ", " + split.Length + "):\n" + line);
break;
}
}
else if (split[0] == "kerning")
{
// Expected data style:
// kerning first=84 second=244 amount=-5
if (len > 3)
{
int first = GetInt(split[1]);
int second = GetInt(split[2]);
int amount = GetInt(split[3]);
BMGlyph glyph = font.GetGlyph(second, true);
if (glyph != null) glyph.SetKerning(first, amount);
}
else
{
Debug.LogError("Unexpected number of entries for the 'kerning' field (" +
name + ", " + split.Length + "):\n" + line);
break;
}
}
else if (split[0] == "common")
{
// Expected data style:
// common lineHeight=64 base=51 scaleW=512 scaleH=512 pages=1 packed=0 alphaChnl=1 redChnl=4 greenChnl=4 blueChnl=4
if (len > 5)
{
font.charSize = GetInt(split[1]);
font.baseOffset = GetInt(split[2]);
font.texWidth = GetInt(split[3]);
font.texHeight = GetInt(split[4]);
int pages = GetInt(split[5]);
if (pages != 1)
{
Debug.LogError("Font '" + name + "' must be created with only 1 texture, not " + pages);
break;
}
}
else
{
Debug.LogError("Unexpected number of entries for the 'common' field (" +
name + ", " + split.Length + "):\n" + line);
break;
}
}
else if (split[0] == "page")
{
// Expected data style:
// page id=0 file="textureName.png"
if (len > 2)
{
font.spriteName = GetString(split[2]).Replace("\"", "");
font.spriteName = font.spriteName.Replace(".png", "");
font.spriteName = font.spriteName.Replace(".tga", "");
}
}
}
}
}